[Servo board XX] Abnormal power regeneration control board (No.XX) or disconnected regeneration power circuit. (for E0x series controllers)

Error handling: Motor power OFF.
Error reset: Not possible.

Description: There is an abnormality such as an open circuit in the circuit carrying regenerative current.

Main causes:

1. A problem with the power supply unit power board.

2. The reactor in the reactor unit is faulty (open circuit).

3. An open circuit in the UVW harness connected between the power block for the power regeneration axis and reactor unit.

4. A problem with the power block for the power regeneration axis.

5. A problem with the servo board.

Countermeasures:

1. Replace the power regeneration unit.

2. Check the reactor unit or the wiring between the power module for the power regeneration axis and the reactor unit, and replace the wiring if necessary.

3. Replace the servo amplifier unit.